FlatOut Tire Sealant 1 Gallon Off-Road Kit - Kevlar-Reinforced, Seals Punctures to 1/2"

FlatOut QuickStrike Tire Sealant is a one-time, Kevlar-reinforced tire protection and repair fluid designed to seal punctures up to 1/2" and stop slow leaks for the life of compatible tires.

If you haul trailers, tow an RV, or run off-road equipment, a sudden slow leak or tread puncture can derail a trip and lead to costly downtime. FlatOut QuickStrike combines rapid-flow chemistry with Kevlar fibers so the sealant reaches the puncture fast, forms a durable plug, and stays water-washable and latex-free for cleaner handling and installation. This gallon kit includes a convenient installation tool and a formula tailored for off-road and heavy-duty trailer use.

How does QuickStrike stop punctures quickly?

QuickStrike is engineered to move through a deflating tire toward the source of air loss so it can deposit Kevlar fibers and polymer where they’re needed. The formula is thinner than many competitors, which improves flow and reduces the chance of the tire going flat before the seal forms.

• Flows rapidly to the puncture for faster sealing
• Kevlar fibers create a strong, flexible plug
• Seals punctures up to 1/2" in the tread area
• Works in tubed and tubeless tire setups

Will this ruin my wheel, valve stem, or TPMS?

FlatOut QuickStrike is non-corrosive and non-flammable, formulated to avoid sticky residues and to be compatible with most modern wheel and sensor systems. Because it’s water-washable and latex/adhesive-free, it’s easier to clean during tire servicing, and it’s designed to be safe with TPMS when used as directed.

• Non-corrosive ingredients protect metal components
• Water-washable for easier cleanup at service intervals
• Latex-free to minimize sticky buildup on rims and sensors
• Follow manufacturer guidance for TPMS-sensitive vehicles

How long does the protection last and what maintenance is needed?

QuickStrike is intended as a one-time application that remains active for the expected life of a compatible tire under normal use. While it virtually eliminates slow leaks, you should still inspect tires periodically and follow recommended torque and pressure checks for safe operation.

• One-time fill designed to protect for tire life when installed correctly
• Reduces or eliminates slow leaks and small tread punctures
• Periodic visual inspections and pressure checks still recommended
• Reapply only if tire is removed or manufacturer advises replacement

Can I use QuickStrike on every vehicle tire?

This Off-Road formula is optimized for RVs, trailers, and utility equipment rather than standard passenger cars. Always check your vehicle and tire maker recommendations before applying; some passenger vehicle manufacturers advise against sealants unless explicitly approved.

• Recommended for RVs, boat trailers, horse trailers, and utility trailers
• Suitable for tubed and tubeless heavy-duty tires used off-road or in towing
• Not recommended for most passenger cars—verify with manufacturer guidance
• Includes tool in kit to simplify installation for trailers and larger tires

Who this product is for: FlatOut QuickStrike is aimed at owners and operators of trailers, RVs, and off-road equipment who need rapid, durable puncture protection without sticky residues or frequent reapplications. If you tow heavy loads, hit rough terrain, or want a maintenance-friendly sealant that uses Kevlar reinforcement to stop tread punctures up to 1/2", this one-gallon kit with an installation tool offers a practical, long-term solution. Not ideal for standard passenger cars unless explicitly permitted by the vehicle maker.